Question

State whether the following statements are true or false.
1 Friction is neither useful nor harmful.
2. Friction can be reduced by polishing the two surfaces in contact.
3. The streamline shape of objects, increase the effect of drag around them.
4. The energy of motion is transferred into heat and noise by friction.
5. Friction can be increased by lubricating the two surfaces in contact.
6 Friction exerted on an object, depends upon its mass.
Class-8
Signature:​

Answer 1

True

False

False

False

True

False.

Answer 2

1.false

2.true

3.false

4.true

5.false

6.true

Explanation:

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class 6